[cisco-voip] SIP Trunk Profile (TCP vs. UDP)

[Roger Wiklund]

http://blogs.technet.com/b/nexthop/archive/2008/05/23/to-udp-or-not-to-udp-that-is-the-question.aspx

Good article on the subject.

On Thu, Aug 30, 2012 at 5:10 PM, Mark Holloway <mh at markholloway.com> wrote:
> For those who have SIP Trunks to the PSTN, which are typically UDP between the carrier and the edge SBC on premise, how many of you are leaving the CUCM SIP Trunk as TCP versus changing it to UDP?  Troubleshooting end-to-end call flow seems easier to bind together when both sides of the SBC are UDP.  Also, I find there hasn't been any real benefit to using TCP of the carrier side is UDP.  I would like to hear what others are doing.
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